Description
The Extreme 60 high-pinion rear full-floating crate axle is the strongest 60 series axle that we offer, designed for severe off-road use with up to 40-inch tires and V8 conversion horsepower
Extreme 60 Features:- High-Pinion Design With Ring Gear Load Bolt
- High-Clearance Radius Bottom Center Section
- Low-Friction Hardened Steel Skid Plate
- Desert Race Inspired Full-Floating Hub Assemblies
- Full-Floating 35-Spline 4340 Chromoly Axles
- Pinion Angle And Brackets Setup For Lifted Vehicles
- 5, 6 or 8-Lug Wheel Bolt Patterns
The Extreme 60 high pinion crate axle for the 2007 and newer Jeep JK Wrangler, is a complete bolt-in axle assembly with all required brackets and mounts in place. The vehicles factory driveshaft will require modification or replacement to accommodate the larger 60 series housing and 1350 series u-joint.
Built to the legendary Currie Standard with features including:
 | Extreme 60 high-pinion nodular iron center section is the strongest 60 series casting we offer, with heavier main caps, ARP® main bolts, and additional reinforcement in critical areas | |
 | Ring gear load bolt (top left) eliminates gear deflection, to dramatically increase torque handling capacity. The load bolt typically sits .002 inch from the ring gear and only touches when extremely high torque loads are applied | |
 | Extreme 60 radius bottom center section delivers unmatched ground clearance, and improved obstacle slide-over by presenting a smooth curve rather than the sharp edge found on other 60 housings | |
 | Replaceable AR400 hardened steel skid plate resists deformation and gouging to slide over obstacles far better than iron housings or mild steel plates | |
 | Large diameter outer pinion bearing (right) is designed for the demands of reverse rotation/high pinion housings. Stock low pinion bearing (left) | |
 | High volume flow-thru recirculating oil system keeps pinion bearings bathed in cool oil, reducing operating temperatures and eliminating oil starvation issues | |
 | Large 3.5-inch diameter .375 wall axle tubes (left) are three times stronger than the stock JK Dana® 44 (right) without being overweight or sacrificing ground clearance | |
 | Desert race inspired chromoly spindles and billet steel full-floating hubs carry the weight of the vehicle, eliminating the influence of side loading and impact shock on axle durability. Safety is improved as the wheel and brake remain in place and fully functional in the rare event of an axle failure | |
 | Includes new JK rear rotors with 5 on 5 1/2 bolt pattern and machined for hub clearance. Calipers, backing plates, and e-brake are OE direct fit, making service parts easy to find | |
 | Currie nodular iron front cover protects expensive internals and adds structural support to the housing's face flange for increased rigidity | |
 | Heavy duty 3/16 inch brackets feature multiple mounting options for adjusting suspension geometry to accommodate a range of vehicle lifts | |
 | Black satin powder coat finish adds long-lasting protection against rust and corrosion to keep your Currie Extreme 60 looking its best |
Notes
ABS Sensors - Does not include ABS sensors, the factory sensors from the stock axle must be retained and installed on the Extreme 60 housing
Computer Programming - 2012 and newer vehicles require a computer programmer, such as the AEV ProCal Module to reset the gear ratio and tire height in the vehicle's computer for proper function of the vehicles stability control and transmission shift points
Brake Components - Includes new 12-inch JK rear rotors with 5 on 5 1/2 bolt pattern and machined for hub clearance. Calipers, backing plates, and e-brake assembly are OE direct fit
Wheel Bolt Pattern - 5 on 5 ½” with 1/2 inch studs installed
Overall Width - Axle width is 70 inches (+4.6 inches over stock) between wheel mounting surfaces, provides increased tire clearance for large tires
Wheel and Tire Size - 17-inch or larger wheels are required for proper clearance of the brake calipers. Maximum recommended tire size is 40-inch
Differential Carriers - Carriers provided by Currie for the Extreme 60 are turned down to 8.300" O.D. for load bolt clearance. If a standard O.D. carrier is installed the load bolt will need to be backed out to prevent damage
| Vehicle Fitment | Extreme 60 high-pinion nodular iron radius bottom center section with thicker walls and webbing |
| Bearing Caps | Increased cross section nodular iron caps secured with ARP® fasteners |
| Pinion Bearing | Large diameter front pinion bearing matched to rear bearing |
| Pinion Oiling | High volume flow-thru recirculating oil system |
| Gear Set | Dana 60™ reverse rotation thick gear sets (compatible with super 60 reverse cut gears) |
| Differential Carrier | High speed differential carriers (designed for low numerical gears) are used, enabling the use of stronger thick ring gears for all gear ratios. Carrier outside diameter is turned down to 8.30 inches for load bolt clearance |
| Ring Gear Load Bolt | Eliminates ring gear deflection under heavy load (3/4"-16 right hand thread with Jam nut) |
| Pinion Yoke | 1350 u-joint |
| Skid Plate | AR400 hardened steel skid plate |
| Differential Cover | Currie nodular-iron cover with gasketed fill plug with dipstick, Red |
| Axle Tubes | 3.5 inch diameter. .375 wall DOM tubing |
| Axles | Currie Performance full floating 35-spline (1.5” diameter) 4340 heat treated chromoly |
| Floater Spindle | Currie Performance 2.5" 4140 Chromoly spindle, supports 35 or 40-spline axles |
| Floater Hub | Currie Performance hubs with 35-spline drive flanges, JK tone rings installed for ABS and ESP retention |
| Brake Rotors | 12" vented rotors with zinc plated caliper brackets |
| Brake Calipers | New factory JK rear Calipers |
| Suspension Brackets | Heavy gauge 3/16” steel mounting brackets with multiple mounting locations that enable the suspension geometry to be tuned |
| Geometry | Optimized for 4” lift kits with 5 degrees of pinion angle to reduce driveshaft angle |
| Width | 70” wide (between wheel mounting surfaces), enables increased clearance for 37 inch and larger tires |
| Wheel Bolt Pattern | 5 lug ( 5 on 5 ½") or 6 lug (6 on 5 ½") with 1/2" studs installed or 8 lug (8 on 6 ½") with 9/16 studs installed |
| Finish | Black satin powder coat |
